Does the suppression shown at LHC in O-O collisions follow the systematics obtained for A-A collisions ?

2025/11/27 by Petrovici, M., Pop, A.
#FOS: Physical sciences #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2511.22139

Abstract

In this letter we want to see to what extent recent experimental results obtained for π⁰ suppression in O-O collisions at √s_NN=5.36 TeV fit into the systematics for much heavier systems. The systematics with which the comparison is made was published a few years ago \citePet₁ in terms of charged particles suppression R_AA as a function of ⟨ N_part ⟩ and ⟨ dN_ch/dη⟩ and the newly introduced R_AA^N=\frac(\fracd²Ndp_Tdη/⟨ \fracdN_chdη⟩)^cen((d²N)/(dp_Tdη)/⟨\fracdN_chdη⟩)^pp,INEL as a function of ⟨ dN_ch/dη⟩. The values of R_AA and R_AA^N at ⟨ dN_ch/dη⟩ and ⟨ N_part ⟩ experimentally measured and estimated by Glauber MC, respectively, for O-O collisions are in good agreement with the systematics obtained for A-A collisions.

Related

• Observation of suppressed charged-particle production in ultrarelativistic oxygen-oxygen collisions
• System-size dependence of charged-particle suppression in ultrarelativistic nucleus-nucleus collisions
• Energy loss baseline for light hadrons in oxygen-oxygen collisions at √(s_NN)=5.36 TeV
• Energy Loss in Small Collision Systems
• Predictions for R_AA in 5.36 TeV C+C, O+O, and Ne+Ne collisions at the LHC